IBM T200F Sequential Access Device Configuration Reserved, Buffer Size at Early Warning

Sequential Access Device Configuration Page

The Write Delay Time field indicates the time (in 100-ms increments) that the drive should wait with unwritten data in the buffer and no activity on the interface before forcing data to tape.

The Change Active Partition (CAP) flag and the Active Partition field should be 0, since multiple partitions are not supported.

The Change Active Format (CAF) and Active Format fields should be 0, since changing formats is not supported.

The Write Buffer Full Ratio and Read Buffer Empty Ratio fields should be 0, since buffer management is done by the drive.

The Data Buffer Recovery (DBR), Report Set Marks (RSmk), Stop On Consecutive File Marks (SOCF), Recover Buffer Order (RBO), Report Early Warning on Read (REW), and Synchronize at Early Warning flags should be clear, since these features are not supported.

The Automatic Velocity Control (AVC) flag should be clear, since velocity control is managed by the drive.

The Gap Size field should be set to 0, since there is no concept of inter-block gaps in the format.

Table 37. Sequential Access Device Configuration Page
	7	6	5	4	3	2	1	0
0	PS (0)	Reserved			Page Code (10h)
1			Additional Page Length (0Eh)
2	Reserved	Reserved	CAF (0)		Active Format (0)
3				Active Partition (0)
4			Write Buffer Full Ratio (0)
5			Read Buffer Empty Ratio (0)
6				Write Delay Time
7
8	DBR (0)	BIS (1)	RSmk	AVC (0)	SOCF (0)		RBO (0)	REW (0)
			(0)
9				Gap Size (0)
10	EOD Defined (0)			EEG (1)	SEW (0)		Reserved
11
:			Buffer Size at Early Warning (0)
13
14			Select Data Compression Algorithm
15				Reserved

The Block Identifiers Supported (BIS) flag should be set, since block identifiers are supported.

32Ultrium Internal Tape Drive and 3580 Ultrium Tape Drive: SCSI Reference